ARP 244-4301 Custom Age 625+ Head Stud Kit for Chrysler 5.7L 6.1L 6.2L 6.4L Hemi

The ARP 244-4301 Custom Age 625+ Head Stud Kit is engineered for high-performance and high-boost Chrysler Hemi engine builds. This newly formulated super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness with complete resistance to atmospheric corrosion and oxidation. Designed specifically for 2003-2024 Gen III Hemi engines including 5.7L, 6.1L, 6.2L, and 6.4L variants, this kit delivers the ultimate in cylinder head retention under extreme conditions.

Key Features:

• Typical tensile strength is 260,000-280,000 psi, far exceeding OEM head bolt specifications
• Custom Age 625+ material provides superior strength and durability for forced induction applications
• Manufactured in ARP's Santa Paula, CA plant with threads rolled after heat treat to provide optimum fatigue strength
• The ends of the studs are broached to facilitate easy installation and enable cylinder head removal in tight quarters
• Direct bolt-in replacement requiring no modification to cylinder head or block
• Includes hardened parallel washers and high-quality nuts for even load distribution
• Reusable design for multiple engine builds

This head stud kit is the preferred choice for big horsepower builds and high-boost applications, proven to reliably secure cylinder heads at boost levels exceeding 25 psi. Whether you're building a street performance engine or an all-out race engine, ARP 244-4301 studs provide the clamping force and reliability needed to prevent head gasket failure and maintain optimal cylinder head sealing under extreme cylinder pressures.